TReFID ~ Figure 2 (Polygons)  
Graphical representation of the tRFs obtained for nifH of N_{2}fixing and nosZ of denitrifying microorganisms.
The shaded polygon symbolizes the sequence derived tRFs for Azospirillum brasilense Sp7. The length of the tRFs is given on the axes in the range of 0 to 500 nt.
Note that these polygons are graphical representations for demonstration purposes only!

